In 2019,Asian Journal of Organic Chemistry included an article by Zhou, Nengneng; Wu, Meixia; Zhang, Man; Zhou, Xiaoqiang. Formula: C33H24IrN3. The article was titled 《Visible-Light-Induced Difluoroacetylation of O-(Allyloxy)Aryl-Aldehydes: Access to Difluoroacetylated Chroman-4-ones》. The information in the text is summarized as follows:
A visible-light photoredox-catalyzed radical cascade cyclization for the synthesis of various difluoroacetylated chroman-4-ones was described. This reaction features high functional-group tolerance, mild reaction conditions and excellent functional-group compatibility. The experimental process involved the reaction of fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6Formula: C33H24IrN3)
fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. Pyridine and its simple derivatives are stable and relatively unreactive liquids, with strong penetrating odours that are unpleasant.Formula: C33H24IrN3